Water loss in Periplaneta americana (L.) with the application of certain insecticides (Blattariae: Blattidae).

Abstract

Water loss in cockroaches was calculated with twelve insecticides, running normal and control experiments. Various details of the treatments and results obtained have been shown through a table and a histogram. It has been concluded that weight loss has been caused by the water loss, and further water loss alone can not be the only cause of death, but it certainly enhances the process of death. Control and treated experiments were run with Allethrin and Aldrin poisoning after arresting the hyperactivity and the general body activity under chilled conditions. The results obtained are contrary to Wigglesworth's views, and it was established that hyperactivity is not the only cause of water loss in treated insects.